From: sylvia@email.invalid   
      
   On 07-Jun-21 11:51 am, JF Mezei wrote:   
   > Sanity check:   
   >   
   > At time of first stage separation for Falcon 9 and lighting of stage 2,   
   > we can see the foil "blanket" that is higher up from the engine bell on   
   > stage 2 move.   
   >   
   > Is this movement due to wind at that altitude/speed (about 100km) or   
   > just the blanket moving due to ship accelerating?   
   >   
   >   
      
   Effect of changing acceleration (as the fuel is depleted) in combination   
   with vibration.   
      
   Sylvia.   
      
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